A multiple-award indefinite delivery, indefinite quantity contract is a base contract that is issued to multiple awardees. The contract establishes the scope of services or goods that can be ordered against it, the order requirements and the maximum cost allowance during the life of the contract.

The contract does not include options and allows orders to be placed by all the naval shipyards and some Naval Supply Systems Command activities.

"We are proud to continue our support of the U.S. Navy by providing them with a submarine fleet that is second to none," said Matt Needy, Newport News' vice president, submarines and fleet support, "and we appreciate the Navy's confidence in Newport News Shipbuilding providing them with reliable submarine modernization in a timely and cost-effective manner."

Newport News is one of only two U.S. shipyards capable of building nuclear-powered submarines and has a long history of performing ship repair projects for the U.S. government, ranging from paint repair to complete hull and machinery renovation.